Diógenes Laércio

All things are in common among friends.

Time is the image of eternity.

I am a citizen of the world.

Nothing can be produced out of nothing.

Aristotle was once asked what those who tell lies gain by it. Said he, that when they speak truth they are not believed.

The question was put to him, what hope is and his answer was, the dream of a waking man.

The teacher must derive not only the capacity, but the desire, to observe natural phenomena. The teacher must understand and feel her position of observer: the activity must lie in the phenomenon. Maria Montessori Democritus says, but we know nothing for truth lies deep down.

One ought to seek out virtue for its own sake, without being influenced by fear or hope, or by any external influence. Moreover, that in that does happiness consist.